Songs!

We ain't worried 'bout it ho, watch me skrrt the whip Yeah, yeah, swervin', movin' to the money like it's urgent Hands on god, so I'm in it like a surgeon (like a surgeon) Uh, the skin color like the bourbon A worldwide sign that we face close curtains (close curtains) Out here yo, nothing's ever certain Only thing that's promised is that promises are broken (promises are broken) Yeah, so we findin' ways to cope then Only thing I'm breakin' is her back with the motions (woo) Yeah, baby girl bring out the goodies Snuck it in inside her hoodie, now we turnin' up to Boogie (yeah) In school I used to fight the bullies, now I'm fightin' with the law Guess some things don't leave you fully (yessir) They try and push me then they try and pull me Bet I will not budge, if you doubt it then just call my bookie And my bookie takin' bets Prophesize a profit when you know what's comin' next, like ooh

This song is kinda annoying me because like if you look at the bolded and italised line, "Only thing that's promised is that promises are broken (promises are broken)," it confuses me because like if you think about it...if promises really are broken, then wouldn't that phrase be untrue? Because if he's promising that promises are broken, then that's a lie.